Cultivator.



A. BRIGDBN.

GULTIVATOR.

APPLIOATION FILED JULY 16, 1908.

1 Patented Mar. 9, 1909.

2 SHEETS-SHEET l.

"fifi-? l iiliiiimm hmum mi W/TNESSES fM Y ' ATTORNEYS A BRGDEN.

Patented Mar. 9, 1909 2 SHEETS-SHEET 2.

ffl

" PATENT OFFIQE.

ARTHUR BRIGDEN, OF ALBERTVILLE, ALABAMA.

oULfrrva'ron.

To all whom 'it may concern.:

Be it known that l, ARTHUR Buisman, a citizen of the United States, and a resident of Albertville, in the county of Marshall and State et Alabama, have invented va new and improved Cultivator, of which the following is a full, clear, and enact descrilition.

This invent-ion relates to agricultural 11nvpleinents, and especially to cultivat rs.

Theinvention concerns itself particularly with the construction of cultivator`which comprises a plurality of cultivator hoes having poi-nts adapted to till the ground, the forward parts oi' the hoes being attached to two cross bars arranged substantially parallel and transversely of the implement. With a cult-ivator ot this-general construe-- tion there is a tendency of the-teeth `of the hoes to become broken at their pointof attaehnient to nthe rear cross bar.

The vobject oi' this invention is to provide an improved arrangement which will strengthen the construction at this point, and further to constructthe parts in such a way that the hoes may be quickly adjusted l with respect to the distance between theni and rigidly secured in any desired relation.

The invention' consists in the construction and combination of partsjto be more fully described hereinafter and particularly set forth in the claims. i y

Reference is to be had-to the accompanying drawings forming a part of this specification in which similar 'characters of refer ence indicate corresponding parts in. all the figures.

Figure l is a plan ot. a cultivatorl constructed according to my invention, the forward yportion of the pole being broken away, in this view parts of the cultivater are represented'in dotted lines indicating the manner in which the relation of the hoes may be adjusted; Fig. 2 is a side elevation of the cultivator shown in Fig. 1, the forward portion of the pole being broken away; F ig. 3 is a vertical cross section taken through the pole just forward of the cultivator body, this view is upon an enlarged scale and shows the middle portion of the mechanism oi the implement; Fig. 4 is a perspective of the parts shown in- Fig. 3,

lcertain parts being broken away; and Fig.

5 is a section taken longitudinally et one of the hoes and showing its manneroi attachnient tothe cross bars referred to above, 1n

Specification of Letters Eatent.

Application filed July 16, 1903. Serial No. 443,808.

Patented March 9,'f1909.

lthis view the hoe is shown in Vcross sectionin the vicinity oi' the bar. i

Referring more particularly to tl'ie parts, und especially to Figs. 1 and 2, l represents the pole oi' the implement, to which horses or other draft animals may beatta'ched'in any suitable .manner At the rear'end ot'l this pole handles 2 are attached, which enable they farmer to guide the implement in a well understood manner. Nearthe rear end the pole is provided with a vertical pivot bolt 3, and this bolt projects ,belenr the pole so as to' enable the attachment of forward cross' bars "4. These cross bars normally eXteiidzat right angles from the pole, so that they are dis-A posed in the same straight line. Just tothe rear of this pivot bolt 3 a pivot bolt 5 is provided, which also extends below the` pole', and at the projecting end of this pivotbolt rear cross bars 6 are pivotally attached. These hcrosslbars 6 are made double, 'as indicated in Figs. 3 and 4, that is,'.eachiof these cross bars is formed with an upper bar 7 and a lower har 8, and the harsen the left-hand side oi the' implement are offset at their point el' schneetion with the pole, as indicated in Fig. Ll, so that the space between'the bars 'on' one side is the saine as' the corresponding space on the opposite side oi lthe implement. y Between the upper and lower bars a reach bar 9 eX- tends rearwardly under the pole, and neat` its rear end a clamping bolt l0 passes down* wardly through the pole and through' this bar. rlfhis clamping bolt l() also passes through longitudinal slots 11 which are formed in adjusting links 12. rl`hese links extend forwardly andincline loutwardly toward the` iront of the implement, their forward ends being attached by pivot boltslto the bars l(3. These bolts 13 also afi'ord means for at- 'caching the ends of inclined brace plates 14,' the upper ends oi' which are overlapped, as indicated in Fig. 3, and secured bythe pivot bolt 5 to the upper side oi' the pole. In this wav a very strong construction is produced .-iory the bars 6, for it will be understood that the braces 14 tend to hold the outer ends ol the bars 6 down and prevent their rising when an unusual pressure comes upon the outermost hoes.

The holes 15 have straight horizontal Shanks, as indicated in Fig. 2, the forward ends el' which are attached to the under side ol' the crossbars 4 by pivot bolts 16, as shown.

The rear ends of the holes are bent down- "I A 35 .ibolt the bars] and 8 'and substantially` fill the i space th'er'ebetwee'n.y The upper bars 7 are lfO pressed on. theunder side so as to form re.-

cassesor sockets 18, and the shanks of thel hoes are? pressed'upwardlyso as to form projections or buttons 19 which yare received in thesockets, as shown. In this waya pivotal connection is vformed at this point without reducing y the cross. section of the material, as

.wouldbe-necessary if the bolts were used at l .sal-Ile rigidly to said pole, and means fixed this' -point. 2

".glfherearend of the reach plate .9 lies .between the links 12, and below the links the threadsof the bolt receive a clamping nut y'20,"gasindicated most clearly in Fig. 4. The tipperend of the bolt `10 is formed with a .f'ilat `head 21,. to which av cam 22" is pivotally. .25 attached; s'aidcam being formed on the end of the clamping lever '23. The cam 22 has a earn edge24, vwhich is curved and eccentric- 1ally'"djsposedilwith respect to the axis ofthe 'ivo't bolt 25,which'attaches the cam to the ff `lt. This cam edge 24 'seats on the upper sidel of thep'ole,jand the cam isdesigne in '-'su'ch a Way that when the lever 2.3v is de pressedlto'a substantially horizontal position, as shown in Figr 2, the nut of the A will firmly vclarnp'th'e links 12 to the 1" "reach plate and the pole. I provide a catch hoo 26, which'is's'ecured in the-upperside fof'th'e pole at the-rear end thereof, and this hook projects laterally over the lever, as in- 40 dicated in Fig. 1, so as .to hold`,the lever down, as will be readily understood. 'The forward cross bars 4 are connected with the rear cross bars 6 near theouter ,endsithereofby links 27, as indicated in Fig. It` will be evident' that by lreleasing the cam lever 23'the rear ends Aof the links 12 become free, so.- as to permit the cross fbars 4. and y6 of theirnplement to be inl anlass? 1 cross -bars secured rigidly-in a position.v f

Having lthus described my invention I .claim as new and desire to secureby Letters Patent,- 1. A cultivator'having a'pole, cross bars pivotally attached to said pole and extending' in opposite v direc'tionsf therefrom, hoes attached 'tof said cross hars',v a rotatable clamping bolt mounted in said pole, a cam lever attached to saidclamping bolt, links pvotally' attached to said cross bars and engaged by said clamping bolt to secure the in the pa'tn of said cam lever for holding said cam lever in its-clamping position.

2. A cultivator having', a pole, forward A cross bars, 'pivotally attached to said pole and 'extending in opposite directions therefrom, rearcross `bars also attached to said ole and parallel with ,said first cross. bars,

inks. connecting said forward cross bars with said rearcross bars, `hoes attached to said forward cross bars'and said rear cross bars'l and extending rearwardly therefrom, 'links pivotally attached gto' a pair of said cross ars onopposite sides of said pole, said links having longitudinalslots' therein, a rotatable 3lampingA bolt lmounted in'said pole andv passing through said slots, a cam' lever attached to said pole and adapted to clamp the,| same to secure said last-links rigidly thereto, and a'hook attached on saidpole lying in the path of said camlever when rotatedon the axis of said bolt, and engaging said cam lever to lock the same. y

-In testimony whereof I have signed myname to this specification in the presence of ytwo subscribing witnesses.`

ARTHUR BRiGDEN.

Witnesses:

C. D. Rises, W.' C.. DAVIS. 

